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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1 to 4); 2 (, 1, 3, 4); 3 (, 1, 3, 4); 4 (, 1, 3, 4); 5 (, 1 to 4); 6 (, 1 to 4); 7 (, 1); 9 (, 2); 2006; 2007; 2008; 2009; 2010; 2011; 2012; 2014
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CLOCKSS Archive
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Preserved
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2026-02-09
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3 to 10
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Portico
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Preserved
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2026-02-12
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Preserved : 2008: 3(1-4), 2009: 4(1-4), 2010: 5(1-4), 2011: 6(1-4), 2011/2012: 7(1-4), 2012/2013: 8(1-4), 2012/2014: 9(1-4), 2013/2014/2015: 10(1-4), 2014/2016: 11(1-4), 2017: 12(1-4), 2018: 13(1-4), 2019: 14(1-4), 2020: 15(1-4), 2021: 16(1-4), 2022: 17, 2023: 18, 2024: 19, 2025: 20
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LOCKSS Archive
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Preserved
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2026-02-09
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5 to 16, 19
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CLOCKSS Archive
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In Progress
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2026-02-09
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11 to 19
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Library of Congress
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Preserved
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2025-04-07
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12 (1 to 4); 13 (1 to 4); 14 (1, 4); 15 (1, 2); 16 (3, 4); 17 (February 2022)
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 2; 14 (1 to 4); 15 (1, 2, 4); 16 (3, 4); 17; 18; 19 (1)
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 2; 14 (1 to 4); 15 (1, 2, 4); 16 (3, 4); 17; 18; 19 (1)
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British Library
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Preserved
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2019-09-18
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Preserved : 5 (4), 6 (3 to 4), 7 (2 to 4), 8 (1), 9 (1 to 4), 10 (1 to 4), 11 (1 to 3), 12 (3 to 4), 13 (1; 3 to 4), 14 (1)
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